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Toxic Cat Plants
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Is English Holly toxic to cats?

YES (TOXIC)
Unfortunately, English Holly is toxic and potentially harmful to cats. We recommend you keep your feline friends away from this plant. See the table below for more information.
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Additional Names:European Holly, Oregon Holly, Inkberry, Winterberry, American Holly
Scientific Name:Ilex aquifolium
Family:Aquifoliaceae
Toxic Principles:Saponins
Clinical Signs:Vomiting, diarrhea and depression. Leaves and berries are low toxicity.
If you think your cat may have ingested a poisonous substance, call 888 426 4435 or your local vet
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is English Holly Toxic to Cats?

Cats are curious creatures that like to explore their surroundings. As a cat owner, it's important to keep your furry friend safe from any potential hazards, including toxic plants.

What is English Holly?

English Holly, also known as Ilex aquifolium, is an evergreen shrub or tree that's commonly used as a decorative plant during the winter holidays. This plant is native to Europe and is characterized by its glossy, green leaves that have sharp, pointy edges and its bright red berries.

Is English Holly Toxic to Cats?

Yes, English Holly is toxic to cats. The leaves and berries contain saponins, which can cause vomiting, diarrhea, and excessive drooling in cats. Ingesting large amounts of English Holly can also cause more severe symptoms, such as difficulty breathing, tremors, and seizures.

If you suspect that your cat has ingested English Holly, it's important to contact your veterinarian right away. They may recommend inducing vomiting or providing supportive care to help your cat recover.

Preventing Exposure to English Holly

The best way to prevent your cat from being exposed to English Holly is to avoid having this plant in your home or garden. If you're concerned about your cat accidentally ingesting English Holly while outside, try to keep them away from any areas where this plant may be growing. Alternatively, you can create a barrier around the plant to prevent your cat from coming into contact with it.

If you do have English Holly in your home or garden, make sure that it's placed out of reach of your cat. You can also try spraying the plant with a deterrent spray that's safe for cats, such as bitter apple or citrus.

Other Toxic Plants to Watch Out For

English Holly isn't the only plant that's toxic to cats. There are many other common household plants that can be harmful if ingested. Some of the most toxic plants for cats include:

  • Lilies
  • Poinsettias
  • Azaleas
  • Rhododendrons
  • Dieffenbachia
  • Philodendron
  • Snake Plant

If you have any of these plants in your home or garden and you notice that your cat is exhibiting symptoms such as vomiting, diarrhea, or lethargy, contact your veterinarian right away.

Conclusion

English Holly is a beautiful plant, but it's important to be aware of its potential toxicity to cats. If you do have this plant in your home or garden, make sure that it's placed out of reach of your furry friend, or consider replacing it with a non-toxic alternative.

Remember to always keep an eye on your cat and to contact your veterinarian if you notice any unusual behavior or symptoms. By taking precautions and being aware of potential hazards, you can help keep your cat safe and healthy.

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